<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>简单css实例</title>
</head>
<style>
    p
    {
        font-family: "Gill Sans";
        font-size: 12px;
    }
    h2
    {
        text-align: center;
    }
</style>
<body>
<h2>css实例</h2>
<p>这是一个css实例，演示h2,p</p>

</body>
</html>